1. API

Options data API

Options analytics
over REST.

64 endpoints for IV rank, options chains, Greeks, dealer gamma, flow and earnings on 5,500+ US stocks and ETFs. One Bearer token, JSON back, an OpenAPI 3.1 spec, and a real response on every page.

Start a trial, get a key Make your first call OpenAPI 3.1 spec

Included with every paid plan. 7 days free, card required. No code? Ask Claude instead, same data.

64REST endpoints in 12 families
5,500+US stocks and ETFs
1 tokenBearer auth, JSON responses

Getting started

Sixty seconds
to a first response.

1. Plan
API access comes with every paid plan, from $55 a month, and every plan starts with a trial. Pick one.
2. Token
Under Account, then API Access, create a token. It is shown once, hashed at rest, expires in a year by default and rotates in one click. Up to three active.
3. Call
Send Authorization: Bearer avmcp_… to any endpoint under https://apexvol.com/api/mcp/data. Always the apex host, never www: the redirect drops the header.
RequestThe 30-delta call on NVDA
curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
     "https://apexvol.com/api/mcp/data/options-by-delta/NVDA?delta=0.30&option_type=call"
Responsereal, captured 2026-09-08
{
  "success": true,
  "data": {
    "actual_delta": 0.2609,
    "ask": 1.08,
    "bid": 1.05,
    "expiration": "2026-09-09",
    "iv": 0.2569,
    "iv_pct": 25.69,
    "iv_units": "decimal",
    "mid": 1.065,
    "option_type": "call",
    "stock_price": 230.3,
    "strike": 235.0,
    "target_delta": 0.3,
    "ticker": "NVDA"
  }
}

Longer version in the getting-started guide. Access rules in authentication and plans and tiers.

The reference

12 families,
64 endpoints.

Each family page lists its endpoints with a real response; each endpoint page has the parameters and their bounds, every field, the errors and a console that runs it on your ticker once you paste a token.

12 endpoints Implied volatility REST endpoints for IV rank, IV percentile, the vol cone, term structure and volatility risk premium. One Bearer token, JSON back, the same tools as MCP. 6 endpoints Options chain An options chain API that returns every strike with bid, ask, IV, delta, gamma, theta, vega, volume and open interest as JSON. Live and historical chains. 3 endpoints Options Greeks Options Greeks over REST: find contracts by delta, pull Greeks heatmaps across strikes and expirations, aggregate a portfolio, and get third-order Greeks. 7 endpoints Gamma exposure Dealer gamma exposure by strike as JSON: net GEX, call and put GEX, the gamma flip level, key levels, 0DTE gamma and max pain for stocks, ETFs and indexes. 2 endpoints Options flow Options flow as JSON: the largest premium by contract, unusual volume against open interest, call and put premium totals and a sentiment read, per ticker. 9 endpoints Earnings and expected move Expected move and earnings analytics over REST: the priced move, the historical average, IV crush, straddle hit rates and a scored verdict per report. 5 endpoints Strategies POST endpoints that build a named strategy from the live chain, analyze custom legs, grid-search strikes, price probability of profit and re-price a chain. 4 endpoints Portfolio risk POST your stock and option positions and get net Greeks, a risk level, scenario P&L, a stress-test battery and the hedge that neutralises delta. 3 endpoints Events and calendars Upcoming earnings with the options-implied move next to the historical average, the macro calendar with estimates and actuals, and monthly seasonality. 4 endpoints Screeners Preset screens over the whole universe, a market-wide volatility regime read, IV-to-SPY mean-reversion stretches and cross-strike arbitrage checks. 7 endpoints Stock analytics Per-ticker context by REST: price and momentum regime, borrow rate and squeeze risk, dividends and the implied dividend, correlation and beta, the raw row. 2 endpoints Account and index Two endpoints about the API itself: your month's usage, allowance, remaining and reset time as JSON, and the machine-readable list of every endpoint.
ConventionsUnits, bases, timestamps and the envelope every endpoint shares. ErrorsEvery status the token surface returns, with the payload shape and what to do. ChangelogAPI 1.32. Every response change, dated, with an Atom feed.

Built for agents and engineers

An API that behaves
like infrastructure.

The details that matter when a model, or a production system, is on the other end.

Honest data, declared units

IV payloads declare iv_units so nothing gets misread ×100. When upstream data genuinely is not available you get an explanation, never silent zeros.

Quotas you can see

Rate-limit and monthly-budget headers on every response, Retry-After on 429s, and a per-endpoint usage breakdown on your account page.

Right-sized for context

Chains default to a near-the-money window that fits an AI context cleanly; widen to the full chain with one parameter when the analysis needs it.

Machine-readable docs

An OpenAPI 3.1 spec and the whole API as one Markdown file, generated from the same parity-tested source as these pages. Every format.

Debuggable failures

Every server error carries a request_id that matches our logs exactly. Quote it to support and we are looking at your traceback.

Tokens done right

Self-served, hashed at rest, shown once, one-year default expiry, one-click rotation, and up to three active per account.

Machine-readable

Built for a
context window.

Download the whole API as Markdown Copy for your AI
Whole API
/llms-full.txt, one Markdown file with every endpoint, its parameters, fields and a real response. Also at /docs/api/apexvol-api.md.
One family
Add .md to any family URL, for example /developers/gamma-exposure-api.md.
One endpoint
Add .md to any endpoint URL, for example /developers/gamma-exposure-api/gex.md.
OpenAPI 3.1
/docs/api/openapi.json, generated from the same parity-tested source as these pages.
Site index
/llms.txt lists every page on the site for an assistant, with a developer section.

Guides

The rules,
in five short reads.

Getting startedGet started with the ApexVol API: create an account, generate a token, make your first call, and connect the MCP server to Claude. Authentication & securityApexVol API authentication: Bearer-token (MCP) and session-cookie + CSRF access, token lifecycle, and 401/403 semantics. Plans, tiers & access controlHow ApexVol API access maps to plans: Free/Basic/Premium/Pro tiers, demo mode, and the feature-key access model. Rate limits & quotasApexVol API rate limits: demo, shared per-IP, and per-token MCP quotas, and what happens when you exceed them. Errors & response conventionsApexVol API request/response conventions, HTTP status codes, and error payload shapes.

Whole jobs as single-file Python scripts, each with its real output, in the recipes.

No code?

Ask Claude
instead.

The ApexVol MCP server puts these endpoints behind 44 tools an assistant calls by name. Ask in plain English, get today's numbers. One click from Claude's connector directory, or add it to the client you already use.

Prompts that call the tools, grouped by family, in the prompt library.

One token,
every plan.

API access comes with every paid plan, from $55 a month. Basic reaches 18 of 64 endpoints (chains, Greeks, strategies), Premium 42 (adds IV, GEX, flow and screens), Pro all 64. 7 days free, card required.

Start a trial, get a key Compare plans

Real market data, not a sandbox.